CAPTCHA
0 antonyms and opposites of CAPTCHA, grouped by meaning.
Noun — A small test on a website meant to tell a real person apart from an automated programme, such as reading distorted letters, picking out images that contain a certain object, or ticking a box that quietly measures how the visitor behaves.
Synonyms by Meaning
1. noun computing
A small test on a website meant to tell a real person apart from an automated programme, such as reading distorted letters, picking out images that contain a certain object, or ticking a box that quietly measures how the visitor behaves.
“I failed the CAPTCHA twice before it accepted that I could see a bicycle.”
How to Use Captcha
The word patterns that sound natural to a native speaker.
Usually written in capitals as CAPTCHA, though lower-case captcha is common in casual writing. The verb use is informal.
Etymology
An acronym of completely automated public Turing test to tell computers and humans apart.
Full origin of CAPTCHA →Frequently Asked Questions
What is the difference between a CAPTCHA and reCAPTCHA?
CAPTCHA is the general name for any test designed to separate people from automated programmes. reCAPTCHA is one particular branded service that provides such tests, so every reCAPTCHA is a CAPTCHA, but many CAPTCHAs come from other providers or are built in-house.
Why do CAPTCHAs ask about traffic lights and bicycles?
Picking objects out of photographs is a task people handle easily and automated scripts historically handled poorly, so it works as a rough divider. The same answers can also be used as labelled training data for image-recognition systems.
Why does a CAPTCHA sometimes pass with just a tick box?
Newer tests do not rely only on the puzzle. They look at signals such as mouse movement, timing and browser characteristics, and if those look consistent with a person, the visible challenge is reduced to a single tick.